Karst Development Characteristics of Aquifer Medium in Jinan Spring Area
To characterize the complexity and heterogeneity of karst aquifer medium structure,taking Jinan Spring Area as an example,on the basis of the statistical data of rock core computer tomography,high-pressure mercury intrusion experiment,and joint fissure measurement,image binarization processing,fractal dimension theory,and mathematical statistics method were used to identify the structural characteristics of karst aquifer medium,and analyze the karst fractal assessment and its influencing factors.The results show that Chaomidian Formation,Beianzhuang Formation,and Section a of Sanshanzi Formation in the study area are aquifer groups with better karst development.The dominant joints of the Chaomidian Formation are concentrated,and the karst development is better than that of the Majiagou Group.Chaomidian Formation and Section a of Sanshanzi Formation have better karst connectivity and better karst water storage than other formations.The fractal dimensions of Beianzhuang Formation and Sanshanzi Formation are significantly higher than those of other formations,and the index of karst fractal assessment is very developed.The relative solubility of rocks in Beianzhuang Formation and Chaomidian Formation is significantly higher.The content of soluble mineral in Section a of Sanshanzi Formation is more than the others,which is easier to develop corrosion fissure,dissolved pores or karst caves by water erosion.
karst developmentcharacteristics of aquifer mediumcomputer tomographyfractal theoryJinan Spring Area
NETL
NSTL
万方数据
